A good teacher should be very alert to his students'progress.

And they had to be alert to Chelsea's countering.

同时他们亦需要提防切尔西的反击.

He always alert to his surroundings, scanning for threats.

他总是对周遭的环境十分警惕, 搜索那些潜在的危险.

Still, there are a few indicators that you can alert to.

不过, 有几个迹象可以让您提高警惕.

But we have to be alert to the challenges which lie ahead.

不过,对于今后的种种考验,我们却不可掉以轻心.

Designers and contractors should be alert to constant innovations in bridge design and construction methods.

设计者和承包商们要注意桥梁设计和施工方法的不断革新.

One should be alert to involvement of other organ systems in diagnosing these entities.

诊断这些疾病时,应警惕其它器官系统受到连累.

Feminine craft was alert to prompt it.

女性的机灵会警觉地提醒她说出适当的话语.

The cat is alert to every sound and movement.

那只猫对任何响动都很警觉.

A good hunting dog is alert to every sound and movement around.

一只好猎犬对四周任何响动均甚警觉.

The bank is alert to the danger.

银行充分意识到了危险。

Alarmed by the frantic calls , the school alerted police, who arrested Amero.

被这通疯狂的警告电话吓坏了的校方只好报警, 警方逮捕了艾美萝.

Our other allies around the world have also been alerted.

我们在全世界的其他盟国也已接获警报.

They had been alerted to the possibility of further price rises.

有人已提醒他们注意物价可能会再涨.

The manager alerted the staff to the crisis facing the company.

经理让员工注意公司所面临的危机.

The coast guard alerted the town to the coming hurricane.

海岸警备队令市民警觉即将来临的飓风.

The doctor alerted me to the danger of a heart attack.

医生提醒我注意心脏病发作的危险.

You asked to be alerted when this item is changed.

您要求当此项目被更改后收到通知.

Had Walden alerted the police yet ?

沃尔登通知警察了 吗 ?

The New Orleans police would by now be alerted.

新奥尔良的警察现在可能已处于待命状态.

The operator is alerted to this situation by blinking front-panel indicators.

面板上的指示器将出现闪光,对操作者发出出现这种情况的警告.